circuitpython/ports/cxd56/mkspk/clefia.h

66 lines
2.7 KiB
C

/****************************************************************************
* tools/cxd56/clefia.h
*
* Copyright (C) 2007, 2008 Sony Corporation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#ifndef _TOOLS_CXD56_CLEFIA_H_
#define _TOOLS_CXD56_CLEFIA_H_
/****************************************************************************
* Public Types
****************************************************************************/
struct cipher
{
int mode;
int dir;
uint8_t rk[8 * 26 + 16];
uint8_t vector[16];
int round;
uint8_t k1[16];
uint8_t k2[16];
};
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
struct cipher *cipher_init(uint8_t *key, uint8_t *iv);
void cipher_deinit(struct cipher *c);
int cipher_calc_cmac(struct cipher *c, void *data, int size, void *cmac);
void bytexor(unsigned char *dst, const unsigned char *a,
const unsigned char *b, int bytelen);
int clefiakeyset(unsigned char *rk, const unsigned char *skey);
void clefiaencrypt(unsigned char *ct, const unsigned char *pt,
const unsigned char *rk, const int r);
#endif